A hydration essential for runners, bikers and hikers alike, the Velocity 1.5L Hydration Pack is HydraPak's lightest weight reservoir available with its feather-light TPU material, wide Slide-Seal™ full opening for easy filling and adding ice, and Comet™ self-sealing valve that delivers a high flow that can be locked and unlocked with one hand. Compatible with a variety of packs from brands like Salomon, Osprey and Camelbak, never run on empty with the Velocity. Features: Universal hanger: compatible with clips, hooks and loops to fit a wide range of vests and packs including Salomon, Nathan, Osprey and CamelBak Grab tab: soft-touch flexible tab allows for quick loading in and out of packs, making it easy to fill or carry Ultralight: lightweight TPU material and minimalist features make the Velocity™ HydraPak's lightest weight reservoir Wide fill opening: Slide-Seal™ top opens extra wide, making it easier to fill and add ice Comet™ bite valve: lightweight, self-sealing valve delivers a high flow and can be locked and unlocked with one hand Easy to clean: reserve the reservoir for deep cleaning and complete drying Plug-n-Play™: a leakproof auto-shut off connector lets you quickly separate reservoir and tube for easy-fitting, allowing you to add compatible insulated tubes and filters Specifications: Materials: TPU, ABS, POM, PP, EPDM, silicone, 304SS, TPU coated nylon fabric Weight: 125g / 4.4oz Dimensions: 320 x 153mm / 12.6 x 6.0" Capacity: 1.5L / 50fl oz Filtration: 28mm filter kit compatible Intended use: hiking / running / cycling